File:EB1911 Platyelmia - Free-swimming Larva of a Polyclad Planarian.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:39, 17 December 2018 | 657 × 631 (134 KB) | Bob Burkhardt | {{Information |description ={{en|1=Free-swimming Larva (Müller's Larva) of a Polyclad Planarian to illustrate the trochosphere-hypothesis of the origin of Platyelmia. The larva is seen in optical section, and its distinguishing feature is the ciliated lobed band (''vl'', ''sl'', ''dl''), which corresponds to the pre-oral ciliated band of a trochosphere-larva. It is here drawn out into eight processes, of which six are shown, their continuity being expressed by the dotted line. See legend be... |
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